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Techspray WonderMASK WA Washable Solder Mask – Quick-drying, water-soluble mask for thru-hole and PCB assembly.

Item Name: WonderMASK WA Washable Solder Mask
Manufacturer: Techspray® / ITW Contamination Control BV
Technologies: Water-washable, temporary solder mask with optimized viscosity for robotic and pneumatic application
Color: White
Cure Type: Ambient 1–2 hrs; optional 30 min @ 80°C
Package Size: 1 gallon liquid
Shelf Life: 2 years

1. Product Overview

WonderMASK WA is a quick-drying, water-washable solder mask designed for temporary masking during PCB assembly. It can be easily removed using batch or inline cleaning systems and withstands lead-free soldering temperatures up to 640°F (343°C). The product is versatile for manual peeling or robotic/pneumatic application and offers a non-corrosive, low-odor, and nonflammable solution for temporary component protection.


2. Applications

  • Thru-hole masking to prevent soldering open holes during wave soldering

  • Temporary adhesive for tacking components on double-sided PCBs

  • Robotic or pneumatic applications for automated assembly processes

3. Typical Properties

Before Use / Ready-to-Use

Property Value
Physical State Liquid
Color White
Odor Alcohol-like
Viscosity 6,050–6,450 cps
Suggested Thickness 10–15 mils
Thinner DI Water
Shelf Life 2 years

After Application / Cured Mask

Property Value
Cure Time 1–2 hrs ambient; 30 min @ 80°C
Removal Soluble in water ≥49°C
Thermal Resistance Up to 640°F (343°C) in wave soldering
Application Methods Pneumatic, robotic, manual
Safety / Environmental Non-corrosive, low odor, nonflammable

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